<template>
  <div id="aCoursesList" class="bg-fa of">
    <!-- /课程详情 开始 -->
    <section class="container">
      <section class="path-wrap txtOf hLh30">
        <a href="#" title class="c-999 fsize14">首页</a>
        \
        <a href="#" title class="c-999 fsize14">{{courseInfoPageVo.subjectLevelOne}}</a>
        \
        <span class="c-333 fsize14">{{courseInfoPageVo.subjectLevelTwo}}</span>
      </section>
      <div class="courseImageInfo">
        <div class="courseImage">
          <img :src="courseInfoPageVo.cover" :alt="courseInfoPageVo.title">
        </div>  
        <div class="courseInfoStyle">
          <div>{{courseInfoPageVo.title}}</div>
          <div>课时：{{courseInfoPageVo.lessonNum}}</div>
          <div>主讲老师：{{courseInfoPageVo.teacherName}}</div>
          <div>课程类别：
            <span>{{courseInfoPageVo.subjectLevelOne}}</span>
            <span>{{courseInfoPageVo.subjectLevelTwo}}</span>
          </div>
          <div>课程发布时间：{{courseInfoPageVo.gmtCreate}}</div>
          <div>学习人数：{{courseInfoPageVo.viewCount}}</div>
          <div><a href="#courseSynopsis" class="goLearn">去学习</a></div>
        </div>
       
        <div class="clear"></div>
      </div>
      <!-- /课程封面介绍 -->
      <div class="mt20 c-infor-box">
        <article class="fl col-7">
          <section class="mr30">
            <div class="i-box">
              <div>
                <section id="c-i-tabTitle" class="c-infor-tabTitle c-tab-title">
                  <a name="c-i" class="current" title="课程详情">课程详情</a>
                </section>
              </div>
              <article class="ml10 mr10 pt20">
                <div>
                  <h6 class="c-i-content c-infor-title">
                    <span>课程介绍</span>
                  </h6>
                  <div class="course-txt-body-wrap">
                    <section class="course-txt-body">
                      <p v-html="courseInfoPageVo.description">
                        {{courseInfoPageVo.description}}
                      </p>
                    </section>
                  </div>
                </div>
                <!-- /课程介绍 -->
                <div class="mt50">
                  <h6 class="c-g-content c-infor-title">
                    <span id="courseSynopsis">课程大纲</span>
                  </h6>
                  <section class="mt20">
                    <div class="lh-menu-wrap">
                      <menu id="lh-menu" class="lh-menu mt10 mr10">
                        <ul>
                          <!-- 文件目录 -->
                          <li class="lh-menu-stair" v-for="chapter in chapterVoList" :key="chapter.id">
                            <a href="javascript: void(0)" :title="chapter.title" class="current-1">
                              <em class="lh-menu-i-1 icon18 mr10"></em>{{chapter.title}}
                            </a>
                            <ol class="lh-menu-ol" style="display: block;">
                              <li class="lh-menu-second ml30" v-for="knobble in chapter.children" :key="knobble.id">
                                <!--<a :href="'/player/'+knobble.videoSourceId" target="_blank">-->
                                <span @click="playVideo(knobble.videoSourceId)" style="cursor:pointer;">
                                  <span class="fr">
                                    <i class="free-icon vam mr10">开始学习</i>
                                  </span>
                                  <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{knobble.title}}
                                </span>
                                <!--</a>-->
                              </li>
                            </ol>
                          </li>
                        </ul>
                      </menu>
                    </div>
                  </section>
                </div>
                <!-- /课程大纲 -->
              </article>
            </div>
          </section>
        </article>
        <aside class="fl col-3">
          <div class="i-box">
            <div>
              <section class="c-infor-tabTitle c-tab-title">
                <a title href="javascript:void(0)">主讲讲师</a>
              </section>
              <section class="stud-act-list">
                <ul style="height: auto;">
                  <li>
                    <div class="u-face">
                      <a href="#">
                        <img :src="courseInfoPageVo.avatar" width="50" height="50" :alt="courseInfoPageVo.teacherName">
                      </a>
                    </div>
                    <section class="hLh30 txtOf">
                      <a class="c-333 fsize16 fl" href="#">{{courseInfoPageVo.teacherName}}</a>
                    </section>
                    <section class="hLh20 txtOf">
                      <span class="c-999">{{courseInfoPageVo.intro}}</span>
                    </section>
                  </li>
                </ul>
              </section>
            </div>
          </div>
        </aside>
        <div class="clear"></div>
      </div>
    </section>
    <!-- /课程详情 结束 -->
    <div class="mt50 commentHtml"><div>
      <h6 class="c-c-content c-infor-title" id="i-art-comment">
        <span class="commentTitle">课程评论</span>
      </h6>
      <section class="lh-bj-list pr mt20 replyhtml">
        <ul>
          <li class="unBr">
            <aside class="noter-pic">
              <img width="50" height="50" class="picImg" src="~/assets/img/avatar-boy.gif">
              </aside>
            <div class="of">
              <section class="n-reply-wrap">
                <fieldset>
                  <textarea name="" v-model="comment.content" placeholder="输入您要评论的文字" id="commentContent"></textarea>
                </fieldset>
                <p class="of mt5 tar pl10 pr10">
                  <span class="fl "><tt class="c-red commentContentmeg" style="display: none;"></tt></span>
                  <input type="button" @click="addComment()" value="回复" class="lh-reply-btn">
                </p>
              </section>
            </div>
          </li>
        </ul>
      </section>
      <section class="">
          <section class="question-list lh-bj-list pr">
            <ul class="pr10">
              <li v-for="(comment,index) in data.items" v-bind:key="index">
                  <aside class="noter-pic">
                    <img width="50" height="50" class="picImg" :src="comment.avatar">
                    </aside>
                  <div class="of">
                    <span class="fl"> 
                    <font class="fsize12 c-blue"> 
                      {{comment.nickname}}</font>
                    <font class="fsize12 c-999 ml5">评论：</font></span>
                  </div>
                  <div class="noter-txt mt5">
                    <p>{{comment.content}}</p>
                  </div>
                  <div class="of mt5">
                    <span class="fr"><font class="fsize12 c-999 ml5">{{comment.gmtCreate}}</font></span>
                  </div>
                </li>
              
              </ul>
          </section>
        </section>
        
        <!-- 公共分页 开始 -->
        <div class="paging">
            <!-- undisable这个class是否存在，取决于数据属性hasPrevious -->
            <a
            :class="{undisable: !data.hasPrevious}"
            href="#"
            title="首页"
            @click.prevent="gotoPage(1)">首</a>
            <a
            :class="{undisable: !data.hasPrevious}"
            href="#"
            title="前一页"
            @click.prevent="gotoPage(data.current-1)">&lt;</a>
            <a
            v-for="page in data.pages"
            :key="page"
            :class="{current: data.current == page, undisable: data.current == page}"
            :title="'第'+page+'页'"
            href="#"
            @click.prevent="gotoPage(page)">{{ page }}</a>
            <a
            :class="{undisable: !data.hasNext}"
            href="#"
            title="后一页"
            @click.prevent="gotoPage(data.current+1)">&gt;</a>
            <a
            :class="{undisable: !data.hasNext}"
            href="#"
            title="末页"
            @click.prevent="gotoPage(data.pages)">末</a>
            <div class="clear"/>
        </div>
        <!-- 公共分页 结束 -->
      </div>
    </div>

  </div>
</template>
<script>
import courseApi from '@/api/course'
import commentApi from '@/api/comment'
import indexApi from '@/api/hot'

export default {
  //获取课程详情
  asyncData({params,error}){
    return courseApi.getCourseInfoForeground(params.id)
      .then(res=>{
        return {
          courseId:params.id,
          courseInfoPageVo:res.data.data.courseInfoPageVo,
          chapterVoList:res.data.data.chapterVoList,
          isbuyCourse:res.data.data.isbuyCourse
        }
      })
  },
  data () {
    return {
      data:{},
      page:1,
      limit:4,
      total:10,
      comment:{
        content:'',
        //courseId:''
      },
      orderUser:{
        courseId:'',
        courseTitle:'',
        courseCover:'',
        teacherName:''
      },

      //courseInfo:{},
      //chapterVideoList:[],

      isbuyCourse:false
    }
  },
  created () {
    this.initComment()
  },
  methods: {
    playVideo(videoSourceId){
        this.orderUser.courseId=this.courseId
        this.orderUser.courseTitle=this.courseInfoPageVo.title
        this.orderUser.courseCover=this.courseInfoPageVo.cover
        this.orderUser.teacherName=this.courseInfoPageVo.teacherName
            indexApi.playVideo(this.orderUser)
                .then(res=>{
                  //this.$router.push({ path: '/player/'+videoSourceId })
                  this.$router.push({ name:'player-vid',params:{vid:videoSourceId},query:{courseId:this.courseId} })
                  //this.route.push()
                })
        },

    initComment(){
       commentApi.getCommentPageList(this.page, this.limit, this.courseId).then(response => {
           this.data = response.data.data
       })
    },
    addComment(){
        this.comment.courseId = this.courseId
        this.comment.teacherId = this.courseInfoPageVo.teacherId
        commentApi.addComment(this.comment).then(response => {
            if(response.data.success){
                this.comment.content = ''
                this.initComment()
            }
        })
    },
    gotoPage(page){
          commentApi.getCommentPageList(page, this.limit,this.courseId).then(response => {
              this.data = response.data.data
          })
      }
  }
  }
</script>
<style>
.courseImageInfo{
  display: flex;
}
.courseImageInfo .courseImage img{
  width:40vw;
  height:45vh;
}
.courseInfoStyle{
  text-indent: 10px;
  background: rgb(179, 233, 243);
  margin-left: 20px;
  font-size: 18px;
  box-shadow: 10px 10px 5px aquamarine;
  padding-right: 10px;
}
.courseInfoStyle div{
  margin-top: 25px;
}
.courseInfoStyle div:nth-child(1){
  font-size: 28px;
  margin-bottom: 40px;
}
.courseInfoStyle span{
		text-align: center;
		color: #4B8BEC;
		border: none;
		border-radius: 3px;
		padding: 1px 2px;
		margin-right: 20rpx;
		background: #ECF5FE;
}
.courseInfoStyle .goLearn{
    display: block;
		width: 280px;
		height: 45px;
		line-height: 45px;
		background: #4B8BEC;
		border-radius: 23px;
		margin: 0 auto;
    margin-top: 60px;
		border: none;
    text-decoration: none;
		font-size: 16px;
    text-align: center;
		color: #FEFFFE;
}
</style>